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super short one liner! solution in Speedy category for Convert and Aggregate by tamagoyaki
def conv_aggr(data: list[tuple[str, int]]) -> dict[str, int]:
return {i:s for i,_ in data if (s:=sum([w for j,w in data if j == i])) != 0 and i }
print("Example:")
print(conv_aggr([("a", 7), ("b", 8), ("a", 10)]))
# These "asserts" are used for self-checking
assert conv_aggr([("a", 7), ("b", 8), ("a", 10)]) == {"a": 17, "b": 8}
assert conv_aggr([]) == {}
assert conv_aggr([("a", 5), ("a", -5)]) == {}
assert conv_aggr([("a", 5), ("a", 5), ("a", 0)]) == {"a": 10}
assert conv_aggr([("a", 5), ("", 15)]) == {"a": 5}
print("The mission is done! Click 'Check Solution' to earn rewards!")
March 6, 2024
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